Date: Sun, 18 Apr 1999 11:36:16 +0800 From: "Shaun Dwyer" <zeus@quakeclan.net> To: "FreeBSD questions" <freebsd-questions@FreeBSD.ORG> Subject: Poor SCSI disk performance Message-ID: <018f01be894c$a0952000$1701a8c0@shaun.ctnet.org.au>
next in thread | raw e-mail | index | archive | help
Hi, after upgrading from 2.2.5 to 3.1-RELEASE the performance of my boot drive (Seagate Hawk ST31230N) has been quite poor. After testing with IO zone (all my iozone tests were with an 80MB file size and 8K block size) i initally recieved .98MB per sec write and 2.95MB per sec read. After fiddling with tunefs i managed to get 1.51MB per sec write and 4.33MB per sec read. This was done after a fresh install with the default newfs settings. From memory, with the previous version I was running, I got around 2.5-3MB per sec write and around 5MB per sec read. I get 2.91MB per sec writing, and 3.57MB per sec reading from my Quantum Lightening 730S! my Current hardware is: Asus P55T2P4 motherboard P133 Bus O/C to 75Mhz (150Mhz clock) 4MB S3 Virge WD8013EP 16Bit NIC Adaptec 2940AU SCSI controller da0: SEAGATE HAWK ST31230N ( 1GB) da1: QUANTUM LIGHTNING 730S (700MB) da2: SEAGATE ST4767 (640MB) I am really at a loss as to why my Hawk performs like a dog. Any help would be appriciated. As I am not subscribed to the mailing list please e-mail me directly. Thanks in advance Shaun To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?018f01be894c$a0952000$1701a8c0>